You will want to provide basic amenities like included washer/dryer since living conditions are already less than ideal with that many roommates so you don't want the added hassle of them needing to go downtown to a laundromat. 3.

Quote from @Mike Sfera: for a duplex, is the BP rent estimate for per unit of combined?

@Natali Cobb  I recently switched over to providing the washer / dryer to start, but say they're responsible for any additional maintenance. 

I never made more than $100k in a year working until my last year of employment, and still managed to retire at 50 with a lifetime pension from a combination of military and public service.

This investment was mainly for the new washer and dryer units in every property.

I will take that over 200.00 a month positive cash flow :)  All the while running my Capital Partner business and funding over 120 deals a year for my hand picked clients. lThat's a nice combination.

And maybe it's not all or nothing for a given method, sometimes a combination of various financing tools is what wins.

So there might be ways for you to find more money to combine with your 80k to pay cash for a decent cash flowing SFR.

Advice on Layout/Design: For those who have added ADUs, do you recommend standalone units, garage conversions, or a combination of both?

An electric dryer will run up the bill of that unit quickly , where a washing machine wont nearly as much .